Bring water in a pot to the boil and add butter. When the butter is melted add flour, all at once, and mix it well until the batter no longer sticks to the sides of the pot, leaving on low heat. Take off heat and let cool for a couple of minutes. Add the eggs one at a time mixing well after each egg.

Pipe in desired shape on ungreased cooking tray or in muffin tin. Cook at 400 degrees for approx. 30 minutes until it is golden brown and puffed nicely.